5
2-4 AIS Receivers
Sensitivity .................................................. (PER) < 20% at –107 dBm
Channel spacing .................................... 25 kHz
Modulation............................................... GMSK
Data rate.................................................... 9600 bits/s
Frequency stability................................ <±1 ppm
Co-Channel .............................................. 10dB
Adjacent Channel .................................. 70dB
IMD .............................................................. 65dB
Blocking ..................................................... 84dB
2-5 DSC Receivers
Sensitivity .................................................. BER <10-4 at 107 dBm
Channel spacing .................................... 25 kHz
Modulation............................................... FSK (1300 Hz/2100 Hz)
Frequency stability................................ <±1 ppm
Co-Channel .............................................. 10dB
Adjacent Channel .................................. 70dB
IMD .............................................................. 65dB
Blocking ..................................................... 84dB
2-6 Serial inputs/outputs
SENS1/2/3/4 ............................................ IEC61162-1/2 (input only)
LONG/AUX/PILOT/RTCM .................... IEC61162-1/2 (input & output)
Display........................................................ RS422 non-isolated
2-7 GPS Antenna and Receiver
Antenna....................................................... PATCH ANTENNA / TNC (RG-58U)
Receiver Type ........................................... 16channel, L1 frequency, C/A code
Accuracy .................................................... Position 2.5 m CEP / DGPS ,SBAS 2.0 m CEP
Start-up Times ........................................ Hot start <3.5sec / Warm start 33sec / Cold start
34sec / Aided start 5 sec / Reacquisition < 1 s
Sensitivity .................................................. Acquisition -140 dBm / Tracking -150 dBm
Summary of Contents for SI-30A
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